var numberArr = [1, 2, 3];
var stringArr = ['apple', 'banana', 'coconut'];
var undefinedArr = [undefined, undefined, undefined];
var arr = [1, 2, 'apple', undefined];
var PeopleClass = /** @class */ (function () {
    function PeopleClass() {
    }
    return PeopleClass;
}());
var peopleArr = [
    { name: '小红', age: 18 },
    { name: '大红', age: 28 },
];
